I think your advice is of great ________ to me and it’s _______.
| A．valuable, worth giving | B．valuable, worth taking it |
| C．value, worth going it | D．value, worth taking |
-- Look at that girl. Is it Susan?
--No, it _______ be her. She has gone back to her home town .
| A．can't | B．mustn't | C．needn't | D．may not. |
________ great progress he has made this term ! He feels _______ .
| A．What a ,excited | B．What, excited |
| C．How ,excited | D．How an ,exciting |
To live a low-carbon life , we must try to save _____ energy and produce ____ carbon .
| A．more , less | B．less , more | C．more , fewer | D．most , least |
--Which do you prefer, Simon ,tea or milk ?
-- ______ is OK . I don't mind .
| A．Both | B．Either | C．None | D．All |